PHP's powerful CURL POST class

This article mainly introduces the powerful PHP POST submission data class in detail. The code is concise and has certain reference value. Interested friends can refer to it. I hope to be helpful.

The specific content is as follows

<?php 
class Request{
  public static function post($url, $post_data = '', $timeout = 5){//curl

    $ch = curl_init();
 curl_setopt ($ch, CURLOPT_URL, $url);
    curl_setopt ($ch, CURLOPT_POST, 1);
    if($post_data != ''){


      curl_setopt($ch, CURLOPT_POSTFIELDS, $post_data);

    }
    curl_setopt ($ch, CURLOPT_RETURNTRANSFER, 1); 
    curl_setopt ($ch, CURLOPT_CONNECTTIMEOUT, $timeout);
    curl_setopt($ch, CURLOPT_HEADER, false);
 $file_contents = curl_exec($ch);
    curl_close($ch);
    return $file_contents;

  }

  public static function post2($url, $data){//file_get_content
    $postdata = http_build_query(
      $data
    );
    $opts = array('http' =>
           array(
             'method' => 'POST',
             'header' => 'Content-type: application/x-www-form-urlencoded',
             'content' => $postdata
           )

    );

    $context = stream_context_create($opts);
    $result = file_get_contents($url, false, $context);
    return $result;

  }
 public static function post3($host,$path,$query,$others=''){//fsocket

    $post="POST $path HTTP/1.1\r\nHost: $host\r\n";
    $post.="Content-type: application/x-www-form-";
    $post.="urlencoded\r\n${others}";
    $post.="User-Agent: Mozilla 4.0\r\nContent-length: ";
    $post.=strlen($query)."\r\nConnection: close\r\n\r\n$query";
    $h=fsockopen($host,80);
    fwrite($h,$post);
    for($a=0,$r='';!$a;){
        $b=fread($h,8192); 
        $r.=$b;
        $a=(($b=='')?1:0); 

      }
    fclose($h);
    return $r;

  }

}

?>

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